11519955 has 16 divisors (see below), whose sum is σ = 20480160. Its totient is φ = 6143904.

The previous prime is 11519933. The next prime is 11519971. The reversal of 11519955 is 55991511.

It is not a de Polignac number, because 11519955 - 2⁵ = 11519923 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42532 + ... + 42801.

It is an arithmetic number, because the mean of its divisors is an integer number (1280010).

Almost surely, 2^11519955 is an apocalyptic number.

11519955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11519955 is a deficient number, since it is larger than the sum of its proper divisors (8960205).

11519955 is an equidigital number, since it uses as much as digits as its factorization.

11519955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85347 (or 85341 counting only the distinct ones).

The product of its digits is 10125, while the sum is 36.

The square root of 11519955 is about 3394.1059205629. The cubic root of 11519955 is about 225.8483528573.

The spelling of 11519955 in words is "eleven million, five hundred nineteen thousand, nine hundred fifty-five".